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Presenting the 2017 Readers Choice Awards for the Best Caves, Caverns and Grottoes.

With the help of our readers, we've rounded up the best scuba diving destinations for encounter a healthy marine environment.

Presenting the 2017 Readers Choice Awards for the best destinations to go scuba diving with big animals in the Pacific and Indian oceans.

Presenting the 2017 readers choice awards for best macro scuba diving in Pacific and Indian oceans.

Presenting the 2017 Readers Choice Awards for the best advanced scuba diving in the Pacific and Indian Oceans.

Looking for an amazing night dive? Try muck diving in the Philippines, Indonesia, Palau and St. Vincent to see tiny creatures and get amazing underwater photos.

Dive in to adventure with tiger sharks in Fiji, hammerheads in the Galapagos, Humboldt squid in Mexico's Sea of Cortez and 8 more insane spots for big-animal scuba diving.